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September Weather in Atengo, Mexico

Last updated: August 27, 2025

In September, the average temperature in Atengo, Mexico hovers around 18°C (65°F), with temperatures dipping as low as 7°C (45°F) and peaking at 29°C (84°F). Expect 126 mm (5.0 in) of precipitation spread across 19 days, resulting in an average humidity level of 84%. Be prepared for a mix of warm days and occasional rain!

September Temperature in Atengo

In September in Atengo, the average temperature is 18°C (65°F). The maximum can reach 29°C (84°F), while the minimum can drop to as low as 7°C (45°F). This mild weather makes Atengo an ideal destination for travelers seeking comfortable conditions for outdoor activities.

September Weather in Atengo: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Atengo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Atengo, September typically has an average temperature of 18°C (65°F), with highs reaching up to 29°C (84°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec566164687067666665635957
Data source: Temperature data for Atengo generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Atengo

In Atengo in September, the precipitation amount is 126 mm (5.0 in) spread over 19 days.

September Precipitation Trends in Atengo

The chart displays monthly precipitation patterns in Atengo, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Atengo, September typically receives around 126 mm (5.0 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec99182537111979712663195
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Atengo

In Atengo in September, humidity is 84%. With an average temperature of 18°C (65°F), this humidity feels like a thick blanket enveloping you, making travel feel heavy and slightly uncomfortable as the air clings to your skin and limits your breath.

September Average Humidity in Atengo

This chart illustrates the average monthly humidity levels in Atengo, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Atengo is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%86%83%80%82%79%72%74%84%92%91%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Atengo

In Atengo in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Atengo, you can check here.

Maximum UV Index Levels in Atengo for September

The chart shows the monthly maximum UV Index (UVI) for Atengo in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Atengo typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9111414151415141412108
Data source: Atengo September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Atengo Compares to Other Months

Weather in Atengo varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Atengo, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Atengo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather14°C (57°F)9 mm (0.3 inches)88%very high
February Weather16°C (61°F)9 mm (0.4 inches)86%extreme
March Weather18°C (65°F)18 mm (0.7 inches)83%extreme
April Weather20°C (68°F)25 mm (1.0 inches)80%extreme
May Weather21°C (70°F)37 mm (1.5 inches)82%extreme
June Weather20°C (67°F)111 mm (4.4 inches)79%extreme
July Weather19°C (66°F)97 mm (3.8 inches)72%extreme
August Weather19°C (66°F)97 mm (3.8 inches)74%extreme
September Weather18°C (65°F)126 mm (5.0 inches)84%extreme
October Weather17°C (63°F)63 mm (2.5 inches)92%extreme
November Weather15°C (59°F)19 mm (0.8 inches)91%very high
December Weather14°C (57°F)5 mm (0.2 inches)91%very high

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